【Adjustable Tension Knob】: This Fishing Umbrella Stand Holder comes with an adjustable tension knob, allowing you to secure your umbrella firmly and adjust it according to your needs. 【Innovative Design】: The 90 degree folding design prevents loss during disassembly. After use, it can be folded and stored on the fishing box without the need for disassembly. 【Universal Fit】: Designed to fit any fishing box, this Aluminum Alloy Fishing Box Umbrella Stand Folding Frame Holder is versatile and can be used with a variety of fishing gear. 【Suitable for Umbrella Rod Diameter of 2.7cm】: The Umbrella Bracket is designed to accommodate fishing umbrellas with a rod diameter of up to 2.7cm, making it suitable for most standard sized fishing umbrellas. 【Material】: Made from aluminum alloy, this umbrella stand is lightweight, ensuring high strength, wear resistance, and durability even in harsh weather conditions. Its thickened base, enlarging its force area to significantly enhance wind resistance. Specification: Material: Aluminum alloy Size Chart: Folded Size 4.7cmx1.3cmx7.2cm/1.85inchx0.51inchx2.83inch Umbrella Stand Diameter 2.7cm/1.06inch Package Includes: 2 Fishing Box Umbrella Stand(1pair) Note: Please allow slightly errors due to manual measurement and different monitors.